TWI765681B - Connectors and Connector Pairs - Google Patents

Abstract

Provided is a connector provided with a connector body and a plurality of terminals attached to the connector body; the connector body is an element integrated with the plurality of terminals by insert molding, and is included therein A protrusion extending in the longitudinal direction and holding the plurality of terminals and a flange protruding outward in the width direction from a side surface of the protrusion at the mounting surface side end of the connector body. The terminal includes: a vertical part whose surface is exposed on the side surface of the convex part; and a tail part connected to the mounting surface side end of the vertical part via a curved connecting part, extending from the flange to the outside in the width direction and being welded on the substrate. The flange includes a notch formed at a position corresponding to each terminal, and at least a part of the surface of the tail portion, the curved connecting portion, and the upright portion is exposed at the notch.

Description

Connectors and Connector Pairs

The present invention relates to connectors and connector pairs.

Connectors such as substrate-to-substrate connectors have been used to electrically connect a pair of parallel circuit substrates to each other. This type of connector is attached to a corresponding one of opposing surfaces of a pair of circuit boards, and is fitted to each other to ensure conduction (for example, refer to Patent Document 1).

FIG. 7 is a perspective view showing a conventional connector.

In the figure, reference numeral 811 is a connector base mounted on a circuit board (not shown), which has a pair of protrusions 812 extending in the longitudinal direction thereof. The convex portion 812 is connected to the upper surface of the strip-shaped bottom plate portion 817 extending in the longitudinal direction of the base 811 , and has a smaller size in the width direction than the bottom plate portion 817 .

Further, a plurality of terminals 861 are attached to the convex portion 812 in the length direction of the connector. Each terminal 861 has a substantially U-shaped curved contact portion 865 and a tail portion 862 that is surface mounted on the circuit board. The tail portion 862 protrudes outward from the side surface of the bottom plate portion 817 and is soldered to connection pads formed on the surface of the circuit substrate.

Furthermore, when the connector is fitted with a mating connector (not shown), the pair of protrusions 812 are each inserted into a pair of grooves formed on the mating base of the mating connector. As a result, the contact portions 865 of the terminals 861 contact and conduct the respective mating terminals (not shown) installed side by side in the grooves.

[Patent Document 1] Japanese Unexamined Patent Application Publication No. 2014-170726.

However, in the conventional connector, when the base 811 is miniaturized, the bottom plate portion 817 protruding outward from the side surface of the convex portion 812 is thinned, which may cause short molding. In other words, in the resin molding process of the base 811, the portion corresponding to the bottom plate portion 817 in the molding die is not sufficiently filled with resin due to the thinness, and the bottom plate portion 817 thus molded may have a missing portion or parts with insufficient wall thickness.

Connectors with missing parts or parts with insufficient wall thickness cannot be sold due to their poor appearance. In addition, when the tail portion 862 of the terminal 861 is soldered, the flux climbs up through the missing portion or the wall thickness of the bottom plate portion 817, and if the flux adheres to the surface of the contact portion 865, contact between the terminal 861 and the mating terminal occurs. defective, and there is no conduction between the terminal 861 and the mating terminal.

Herein, an object of the present invention is to solve the problems of conventional connectors and to provide a connector and a connector pair that are easy to manufacture, do not cause underfilling, and do not adhere to the contact portion of the terminal.

Thus, there is provided a connector provided with a connector body and a plurality of terminals attached to the connector body; the connector body is an element integrated with the plurality of terminals by insert molding, and It includes a convex portion extending in the longitudinal direction and holding the plurality of terminals, and a flange protruding outward in the width direction from the side surface of the convex portion at the mounting surface side end of the connector body. The terminal includes: a vertical part whose surface is exposed on the side surface of the convex part; and a tail part connected to the mounting surface side end of the vertical part via a curved connecting part, extending from the flange to the outside in the width direction and being welded on the substrate. The flange includes a notch formed at a position corresponding to each terminal, and at least a part of the surface of the tail portion, the curved connecting portion, and the upright portion is exposed at the notch.

Furthermore, for another connector, the width of the notch is narrower than the width of at least one of the upright portion, the bent connection portion and the tail portion of the terminal.

Furthermore, for yet another connector, a continuous corner is formed from the tail through the notch to the upper surface of the flange.

Furthermore, for yet another connector, the corner is an intersection of two surfaces that intersect with each other.

Furthermore, for another connector, a concave portion is formed between the upright portions adjacent to each other on the side surface of the convex portion.

In addition, for another connector, the bottom surface of the recess is flush with the upper surface.

In addition, there is provided a connector provided with a connector body and a plurality of terminals attached to the connector body; the connector body is an element integrated with the plurality of terminals by insert molding, and It includes a convex portion extending in the longitudinal direction and holding the plurality of terminals, and a flange protruding outward in the width direction from the side surface of the convex portion at the mounting surface side end of the connector body. The terminal includes: a vertical part whose surface is exposed on the side surface of the convex part; and a tail part connected to the mounting surface side end of the vertical part via a curved connecting part, extending from the flange to the outside in the width direction and being welded on the substrate. A concave portion is formed between the standing portions adjacent to each other on the side surface of the convex portion, and the bottom surface of the concave portion is flush with the upper surface of the flange.

In addition, for yet another connector, the upright portion includes a contact portion that contacts a mating terminal of the mating connector, and wherein the contact portion is spaced apart from the upper surface of the flange.

A connector pair includes the connector according to the present invention and a mating connector fitted with the connector.

According to the present invention, the connector and the connector pair are easy to manufacture, no underfilling occurs, and the solder does not adhere to the contact portion of the terminal, and the miniaturization and reliability can be improved.

1: The first connector

10: Half body

10A: Left half of the body

10B: Right half of the body

11: The first base

12: The first convex part

12a: Mating surface

12b: Outer side

12b1: Bottom

12c: inner side

12d: Side recesses

12d1: inner side

12d2: Underside

12d3: inside side

12e: upper recess

12f: Overlay

13: groove part

14: Extended end

15: Buried part

16: Covering Department

17: Bottom plate

17a: Mounting surface

17b: Flange

17b1: Upper surface

17b2: End face

17c: Notch

17c1: Side

18: The first protruding end

51: The first strengthening accessories

52: Outer cover of end wall

52a: tail

53: End wall inner surface covering

54: Upper board

55: Feet

61: The first terminal

62: tail

62a: Surface

62c: side

62d: lower surface

63: Bend connection

63a: Surface

64: upper end

64a: Embedding Department

64b: upper surface

65: Libe

65a: Contact recess

65b: Surface

101: Second connector

111: Second base

111a: Mating surface

111b: Mounting surface

112: Recess

112a: groove part

113: Second convex part

114: side wall

115: The second terminal receiving cavity

121: Second protruding end

122: Fitting recess

151: Second reinforcement accessories

152: Second body part

153: side cover

154: touch side

156: tail

161: Second terminal

162: tail

165: Contact part

165a: Contact bump

811: Pedestal

812: convex part

817: Bottom plate

861: Terminal

862: tail

865: Contact Department

Other features and effects of the present invention will be described with reference to the embodiments of the drawings It is clearly shown in the formula, wherein: FIG. 1 is a perspective view of the first connector according to the present embodiment; FIG. 2 is an exploded view of the left half body of the first connector according to the present embodiment; FIG. 3A is according to the present embodiment. FIG. 3B is an enlarged view of part A in FIG. 3A; FIG. 4A is a top view of the left half body of the first connector according to the present embodiment, and FIG. 4B is a side view; FIG. 5A is an enlarged cross-sectional view of the main part of the left half body of the first connector according to the present embodiment and taken along the line C-C in FIG. 4A, and FIG. 5B is an enlarged part F in FIG. 5A. Fig. 5C is an enlarged view of part E in Fig. 4A, and Fig. 5D is an enlarged cross-sectional view taken along the line D-D in Fig. 4A; Fig. 6A is a perspective view illustrating the first connector according to the present embodiment, and 6B is a perspective view in which the first connector and the second connector are fitted with each other; and FIG. 7 is a perspective view showing a conventional connector.

The embodiments will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view of a first connector according to the present embodiment. FIG. 2 is an exploded view of the left half body of the first connector according to the present embodiment. FIG. 3 is a perspective view of the left half body of the first connector according to the present embodiment. FIG. 4 is a first Two-sided view of the left body half of the connector. FIG. 5 is an enlarged view of a main part of the left half body of the first connector according to the present embodiment. Note that, in FIG. 3 , FIG. 3A is a perspective view, and FIG. 3B is an enlarged view of part A in FIG. 3A . In FIG. 4, FIG. 4A is a top view and FIG. 4B is a side view. In FIG. 5, FIG. 5A is an enlarged cross-sectional view taken along line C-C in FIG. 4A, FIG. 5B is an enlarged view of part F in FIG. 5A, FIG. 5C is an enlarged view of part E in FIG. 4A, and FIG. 5D is an enlarged cross-sectional view taken along line D-D in FIG. 4A.

In the figure, reference numeral 1 is a first connector which is one of a pair of board-to-board connectors, and is a connector in this embodiment. The first connector 1 is a surface mount type connector, which is mounted on the surface of a first substrate (not shown) serving as a mounting element, and is fitted into a second connector 101 serving as a mating connector described later. . Further, the second connector 101 is the other of the pair of board-to-board connectors and is a surface mount type connector mounted on the surface of a second board (not shown) serving as a mounting element.

The first connector 1 and the second connector 101 according to the present embodiment are preferably used to electrically connect the first substrate and the second substrate, but can also be used to electrically connect other elements. For example, the first substrate and the second substrate are each a printed circuit substrate, a flexible flat cable (FFC), a flexible circuit substrate (FPC), etc. used in electronic equipment and the like, but may be any kind of substrates.

In addition, in the present embodiment, expressions such as indication directions such as up, down, left, right, front, and back for explaining the actions and configurations of the respective parts of the first connector 1 and the second connector 101 are not absolute but the opposite direction, and when the first connector 1 and These expressions are appropriate when the parts of the second connector 101 are in the postures shown in the figures, but when these postures are changed, the directions should be interpreted differently corresponding to the changes in said postures.

In addition, the first connector 1 uses the first reinforcing fitting 51 and is formed by a molding method called overmolding, outsert molding or insert molding (hereinafter referred to as "insert molding"). "Description) The cover part 16 formed integrally is constructed by connecting a pair of left and right half body parts (ie, the left half body part 10A and the right half body part 10B) to each other. Note that the left half body portion 10A and the right half body portion 10B are the same members that are arranged to face each other, and thus, in the case of a unified description, the left half body portion 10A and the right half body portion 10B are formed as half bodies Section 10 to explain. Each of the left half body portion 10A and the right half body portion 10B has a substantially gate-like shape in plan view (shape projected on the X-Y plane), and the joint between the left half body portion 10A and the right half body portion 10B is formed. The space is an elongated groove portion 13 extending in the longitudinal direction (X-axis direction) of the first connector 1 . The groove portion 13 is a through hole opened on the upper surface and the lower surface of the first connector 1 .

Note that, in the present embodiment, for convenience of description, the first connector 1 is described as having a pair of halves 10 , that is, having a configuration in which two halves 10 are arranged in parallel, however, three halves 10 may be arranged in parallel The above half body 10 . Further, the half body portion 10 does not necessarily have to have a substantially gate-shaped shape, but may have any shape as long as both ends in the longitudinal direction can be combined with the cover portion 16 through the first reinforcement fittings 51 .

The half body portion 10 has, as a connector body, a first base 11 that is integrally formed of an insulating material such as synthetic resin and has a general gate shape in plan view. Each of the first bases 11 includes: an elongated strip-shaped bottom plate portion 17 extending in the longitudinal direction (X-axis direction) of the first base 11; and a first convex portion 12 as an elongated convex portion on the first base The base 11 extends in the longitudinal direction and is integrally formed on the upper surface of the bottom plate portion 17 . The first convex portion 12 is an element having a cross-sectional shape similar to an inverted U shape, and has a curved fitting surface 12 a located on the upper side (positive Z-axis side) and outer surfaces 12 b connected to the right and left sides of the fitting surface 12 a and inner side 12c. The outer side surface 12 b and the inner side surface 12 c are a pair of opposite planes parallel to each other, and extend in the longitudinal direction of the first base 11 . Note that the dimension of the first convex portion 12 in the width direction (Y-axis direction) is smaller than the dimension of the bottom plate portion 17 in the width direction, so that the bottom plate portion 17 is located at the mounting surface side end (ie, the lower end (Z) of the first convex portion 12 . A flange 17b protruding from the outer side surface 12b and the inner side surface 12c to the outer side in the width direction. In addition, the lower surface of the bottom plate portion 17 is a mounting surface 17 a of the surface of the first base 11 facing the first substrate.

A first terminal 61 serving as a terminal is provided on each of the first convex portions 12 . The first terminals 61 are arranged in a predetermined number (16 in the example shown in the figure) and a predetermined pitch. The first terminal 61 is an element integrally formed by subjecting a conductive metal plate to processing such as punching, bending, etc., and has: a vertical portion 65 extending in the up-down direction; and connected to the lower end of the upright portion 65 ; and the upper end portion 64 is connected to the upper end of the upright portion 65 by bending at about 90 degrees. Please be aware of, The embedded portion 64 a extending in the downward direction is connected to the distal end of the upper end portion 64 by being bent at about 90 degrees. The embedded portion 64a is a portion embedded in the first convex portion 12 in the downward direction from the fitting surface 12a.

The tail portion 62 extends outward in the width direction from the flange 17b of the bottom plate portion 17 in the same direction as the direction in which the surface 65b of the upright portion 65 faces, and is connected by soldering to a connection pad connected to the conductive trace. The conductive traces are typically signal lines. In addition, the center in the vertical direction (Z-axis direction) of the upright portion 65 includes a contact recess 65a recessed from the surface 65b as an example of a contact portion that contacts when the first connector 1 and the second connector 101 are fitted A portion of the second terminal 161 to be described later provided by the second connector 101 . The contact recess 65a is provided to be spaced apart from the upper surface 17b1 of the flange 17b.

The first terminal 61 is integrated with the first base 11 by insert molding. That is, the first base 11 is molded by filling the insulating material in the cavity of the mold in which the first terminals 61 are provided in advance. Therefore, the lower surface of the tail portion 62 is exposed to the mounting surface 17 a , the surface 65 b of the standing portion 65 , the surface 63 a of the curved connecting portion 63 , and the upper surface 64 b of the upper end portion 64 are exposed to the outer surface 12 b or inner surface of the first convex portion 12 . 12c and the fitting surface 12a, the first terminal 61 is integrally attached to the first base 11. Note that the surface 65b of the standing portion 65 is formed to be substantially flush with the outer side surface 12b and the inner side surface 12c of the first convex portion 12 .

Furthermore, the plurality of first terminals 61 attached to each of the first protrusions 12 are oriented such that The postures of the adjacent first terminals are opposite to each other in the width direction of the first convex portion 12 . In the example shown in the figure, among the plurality of first terminals 61 attached to the first convex portion 12 of the left half body portion 10A, the first terminal 61 located at the front end (the X-axis positive direction end) is oriented upright The surface 65b of the portion 65 faces the outside (the positive Y axis side) and the tail portion 62 protrudes outward (the positive Y axis side), and the first terminal 61 located at the second position from the front end is oriented as the surface of the upright portion 65 The posture in which the 65b faces inward (the Y-axis negative direction side) and the tail portion 62 thereof protrudes inward. In this manner, since the plurality of first terminals 61 are attached to the first protrusions 12 in alternate juxtaposition in opposite directions, the pitches of the tails 62 protruding from each of the two sides of the first protrusions 12 are is twice the pitch of the first terminals 61 . Therefore, the connection work to the connection pads of the first substrate can be easily performed by soldering or the like. The pitch of the vertical portions 65 exposed on the outer side surface 12 b of the first convex portion 12 and the pitch of the vertical portions 65 exposed on the inner side surface 12 c are also twice the pitch of the first terminals 61 .

Note that since the first terminal 61 is an element integrated with the first base 11 by insert molding or the like, there is no separation of the first terminal 61 from the first base 11 . Note, however, that in FIG. 2 , the first terminal 61 is shown separately from the first base 11 for convenience of explanation.

In the present embodiment, the flange 17b of the bottom plate portion 17 is in the shape of an elongated strip extending in the longitudinal direction of the first connector 1 in plan view, but a notch 17c is formed at a portion corresponding to each of the first terminals 61 and corresponding to the The surface of a terminal 61 is exposed at the notch 17c. Specifically, from the surface 63a of the curved connecting portion 63 of the standing portion 65 and the surface 62 of the tail portion 62 62a is exposed.

In this way, the existence of the notches 17c reduces the flow distance of the insulating material filling the flanges 17b at the corresponding positions in the mold cavity during the insert molding process, and in this way, no under-filling occurs and the convexity of the thin-walled element is avoided. The rim 17b produces a missing site or a site with insufficient wall thickness. Thereby, the 1st base 11 of the manufactured 1st connector 1 does not have an external appearance defect.

Further, the dimension (ie, width) in the longitudinal direction of the first base 11 of the notch 17 c is formed to be narrower than the dimension (ie, width) in the longitudinal direction of the first base 11 of the surface of the first terminal 61 . In this embodiment, the flange 17b covers the surface of the upright portion 65, the curved connecting portion 63 or the tail portion 62, and thereby forms at least one of the widths narrower than the three. In this way, a part of the surface of the first terminal 61 can be covered by a part of the flange 17b.

By covering a part of the surface of the first terminal 61 from the outside with the flange 17b, the first terminal 61 can be more firmly fixed to the first terminal 61 than when the surface of the first terminal 61 is exposed with respect to the first base 11. base 11.

As in this embodiment, when the flange 17b covers the surface of the upright portion 65 , the curved connection portion 63 or the tail portion 62 , the width of the notch 17c is preferably smaller than the width of the upright portion 65 , the curved connection portion 63 and the tail portion 62 .

In addition, when the tail portion 62 is soldered to the connection pads (the connection pads are connected to the conductive traces of the first substrate), due to the existence of the notch 17c, as shown by the dotted line B in FIG. Surface tension and capillary action cause the flux to pass through the corners of the first terminal 61 and the flange 17b as passages, and climb onto the upper surface 17b1 of the flange 17b and be collected. Here, the flux is concentrated and collected around the corner formed by the surface of the first terminal 61 and the upper surface 17b1 of the flange 17b and the corner formed by the notch of the flange 17b, but the contact recesses 65a are formed on the upper surface 17b1 at intervals. above, so that the flux does not reach or adhere to the contact recess 65a which is a contact portion.

Specifically, the flux is first extruded from the lower surface 62d of the surface of the tail 62 facing the first substrate (not shown), climbing through the corner where the end surface 17b2 of the flange 17b meets the side 62c of the tail 62, and then along the first The length direction (X-axis direction) of the base 11 flows through the corner where the end surface 17b2 of the flange 17b and the surface 62a of the tail portion 62 intersect, and then flows through the flange 17b in the width direction (Y-axis direction) of the first base 11 The corner where the side 17c1 of the notch 17c of the notch 17c meets the surface 62a of the tail 62, climbs through the corner where the side 17c1 of the notch 17c of the flange 17b meets the surface 63a of the curved connecting portion 63 and the surface 65b of the upright portion 65, and then along the The length direction of the first base 11 flows through the corner where the surface 65b of the upright portion 65 and the upper surface 17b1 of the flange 17b intersect, and then flows along the length direction of the first base 11 through the outer surface 12b of the first convex portion 12. The corner where the lowermost portion 12b1 intersects with the upper surface 17b1 of the flange 17b, and is finally collected centered on the corner of the upper surface 17b1 of the flange 17b away from the surface 65b of the contact recess 65a. Note that, for convenience of explanation, only the flow of the flux along the dotted line B shown in FIG. 3B on the outer side surface 12b side of the first convex portion 12 is explained, however, the same applies to The flow of the flux on the inner surface 12c side of the first convex portion 12 .

Further, the position of the notch 17c in the longitudinal direction of the first base 11 is formed below the contact portion of the first terminal 61, or in other words, in the present embodiment, formed in the longitudinal direction of the first base 11 at the same position as the contact recess 65a. Then, a portion without corner formation can be provided below the contact portion. Thereby, even if the contact recessed part 65a which is a contact part and the upper surface 17b1 of the flange 17b approach each other, a corner is not formed in the vicinity of the contact part. As described above, the flux flows through the corners and is also collected around a corner, so that the flux flows away from the contacts and is collected, which causes the flux to move away from the contacts.

In order to enable a larger amount of flux to be collected, it is preferable that the side surface recesses 12d are formed on the outer side surfaces 12b of the first protrusions 12 as the recesses serving as the flux collection recesses on the vertical surfaces of the first terminals 61 adjacent to each other. between sections 65. The side recessed portion 12d is formed at a portion of the outer side surface 12b that contacts the upper surface 17b1 of the flange 17b, and a part of the upper surface 17b1 constitutes a lower surface of the side surface recessed portion 12d. In other words, the bottom surface 12d2 of the side recessed portion 12d is flush with the upper surface 17b1. As a result, the flux flowing through the corner where the lowermost portion 12b1 of the outer side surface 12b of the first convex portion 12 intersects the upper surface 17b1 of the flange 17b continues to flow and flows through the corner where the inner surface 12d1 of the side recess 12d intersects the bottom surface 12d2 into the side recess 12d, and further along the corner where the inner side 12d3 of the side recess 12d and the bottom surface 12d2 intersect or the corner where the inner surface 12d1 and the inner side 12d3 intersect, and is collected in the side recess 12d. Thus, from the table of the first substrate The surface-climbed flux, even a large amount of flux, can be collected in the side recessed portion 12d, and thus the adhesion of the flux to the contact recessed portion 65a of the first terminal 61 can be reliably prevented.

The upper end concave portion 12e is formed on the curved fitting surface 12a on the upper side of the first convex portion 12 . The upper end concave portion 12e is formed downward from the uppermost portion of the fitting surface 12a and the upper surface 64b at the same position as the uppermost portion in the relative vertical direction (Z-axis direction) of the upper end portion 64 of the first terminal 61 (Z-axis negative direction) concave. In addition, both side surfaces of the upper end portion 64 of the first terminal 61 exposed in the upper end concave portion 12e are covered by the covering portion 12f formed in the upper end concave portion 12e of the first base 11 . The surface of the covering portion 12f is preferably a curved surface or an inclined surface, as shown in FIG. 4A .

In this way, the upper end concave portion 12e which is concave below the upper surface 64b of the upper end portion 64 of the first terminal 61 is formed in the fitting surface 12a, so that when the mold is filled with resin in the insert molding process, the first terminal 61 Support can be obtained by abutting a part of the cavity surface of the mold against the upper surface 64b, and when the mold is opened, by moving the mold upward relative to the first terminal 61, the first base 11 integrally formed with the first terminal 61 can be smoothly removed. In particular, by forming the covering portion 12f, the first base 11 integrally formed with the first terminal 61 can be removed from the mold in an extremely smooth manner.

Further, first protruding end portions 18 serving as body ends and as fitting guide portions are provided at both ends in the longitudinal direction of the first convex portion 12 . The first protruding end portions 18 are elements connected to both ends in the longitudinal direction of each of the first convex portions 12 , and are formed to couple the left half body portion 10A and the right half body portion 10B. In addition, between the first connector 1 and the second connector 101 In the fitted state, the first protruding end portion 18 functions as an insertion convex portion that is inserted into the fitting concave portion 122 of the second protruding end portion 121 of the second connector 101 to be described later.

The first protruding end portion 18 is constituted by the extension end portion 14 of the left and right half body portions 10 , the embedded portion 15 , the covering portion 16 , and the first reinforcement fitting 51 .

The extended end portions 14 extending in the longitudinal direction are integrally connected to both ends in the longitudinal direction of the first convex portion 12 of each half portion 10 , and the embedded portion 15 further extending in the longitudinal direction of the first convex portion 12 It is integrally connected to each extension end 14 . Note that the extended end portion 14 extends obliquely inward, and the embedded portion 15 extends in the longitudinal direction from a position eccentric to the inside of the distal end of the extended end portion 14 and is located inward of the outer side surface 12 b of the first convex portion 12 . That is, the extended end portion 14 of the left half body portion 10A extends obliquely to the right direction (Y-axis negative direction), and the embedded portion 15 extends in the longitudinal direction from a position eccentric to the right direction at the distal end of the extended end portion 14 . Further, the extended end portion 14 of the right half body portion 10B extends obliquely in the left direction (positive Y-axis direction), and the embedded portion 15 extends in the longitudinal direction from a position eccentric to the left of the distal end of the extended end portion 14 .

Further, at least a part of the extended end portions 14 of the left and right half body portions 10 and the whole of the embedded portion 15 are covered with a covering portion 16 formed of an insulating material such as synthetic resin. Specifically, the cover portion 16 is formed with the integrated first terminal 61 and the first base 11 by the second insert molding, or in other words, by bringing the embedded portions 15 of the left and right half body portions 10 close to each other , The covering portion 16 is formed by insert molding in a state covered by the first reinforcing metal fitting 51 . As a result, the left and right half body portions 10 are extended. The end portion 14 and the embedded portion 15 , the covering portion 16 and the first reinforcing fitting 51 are integrated to form the first protruding end portion 18 , thereby joining the left and right half body portions 10 to each other.

In this way, since the extended end portion 14 extends obliquely inward and the embedded portion 15 is positioned inward with respect to the outer surface 12b of the first convex portion 12, the width (dimension in the Y-axis direction) of the first protruding end portion 18 can be smaller than that of the first protruding end portion 18. The width of the connector 1 (the distance between the outer side surfaces 12b of the first protrusions 12 on the left and right). Note that the extended end portion 14 does not have to be inclined inward, but may extend straight without making the width of the first protruding end portion 18 smaller than the width of the first connector 1 . Further, by directly extending the embedded portion 15 from both ends of the first convex portion 12 in the longitudinal direction, the extended end portion 14 can be omitted. In this case, the size of the first connector 1 in the longitudinal direction can be reduced. Furthermore, when three or more half-body parts 10 are arranged in parallel, the extended end parts 14 may extend from both ends of the first convex part 12 in the longitudinal direction to form a Y-shape.

The first reinforcement fitting 51 is an element integrally formed by applying processing such as punching, bending, etc. to a metal plate, and includes: a substantially rectangular upper plate 54 extending in the width direction of the first base 11; substantially rectangular feet A portion 55, which is connected to the left and right side edges of the upper plate 54 and extends downward; and an outer end wall covering portion 52 and an inner end wall covering portion 53, which are respectively connected to the front and rear side edges of the upper plate 54 and extend downward. extend. Note that the tail portion 52a is connected to the lower end of the end wall outer covering portion 52, is bent about 90 degrees from the lower end of the end wall outer covering portion 52, extends outward in the longitudinal direction of the first base 11, and is connected to the connection by welding or the like Pads (connection pads are connected to conductive traces on the first substrate). Please be aware of, The conductive traces are typically power lines.

In addition, the notch 17c of the flange 17b can be appropriately omitted without occurrence of undershot based on the thickness of the flange. In this case, even if the flux rises on the upper surface 17b1 of the flange 17b at the time of soldering, the flux is centered on the corner where the outer side surface 12b of the convex portion 12 or the surface 65b of the standing portion 65 intersects the upper surface 17b1 is collected, and is collected away from the contact recess 65a. Furthermore, if there is a large amount of flux, the flux can also be collected in the side recessed portion 12d, thereby preventing the flux from adhering to the contact recessed portion 65a.

Next, the configuration of the second connector 101 forming a connector pair with the first connector 1 and the operation of fitting the first connector 1 and the second connector 101 will be described.

FIG. 6 is a perspective view illustrating the fitting of the first connector and the second connector according to the present embodiment. Note that, in FIG. 6 , FIG. 6A is a perspective view of the second connector, and FIG. 6B is a perspective view in which the first connector and the second connector are fitted with each other.

The second connector 101 as a mating connector according to the present embodiment has a second base 111 integrally formed of an insulating material such as synthetic resin as a mating connector body. As shown in FIG. 6B , the second base 111 is a substantially rectangular parallelepiped having a substantially rectangular thick plate shape. In addition, a substantially rectangular recessed portion 112 that is fitted with the first base 11 and closed around the circumference is formed on the side of the second base 111 on which the first connector 1 is fitted (that is, the fitting surface 111a side (the Z-axis negative direction side) ). The second convex portion 113 , which is an island portion that fits into the concave portion 13 , is integrally formed in the concave portion 112 with the second base 111 . In addition, side wall portions 114 extending parallel to the second convex portion 113 are integrally formed with the second base 111 on both sides of the second convex portion 113 .

The second convex portion 113 and the side wall portion 114 protrude upward (the negative Z-axis direction) from the bottom surface of the concave portion 112 and extend in the longitudinal direction of the second connector 101 . Therefore, groove portions 112 a that are elongated concave portions extending in the longitudinal direction (X-axis direction) of the second connector 101 are formed on both sides of the second convex portion 113 as part of the concave portion 112 . Groove-shaped second terminal accommodating cavities 115 for accommodating the second terminals 161 as mating terminals are formed on both side surfaces of the second convex portion 113 and the inner side surface of the side wall portion 114 . The second terminal accommodating cavities 115 are arranged at a pitch corresponding to the first terminals 61 and a number corresponding to the first terminals 61 .

The second terminal 161 is an element integrally formed by applying processing such as punching to a conductive metal plate, and includes: a body part (not shown); a tail part 162 connected to the lower end of the body part; The vicinity of the lower end extends in the width direction (Y-axis direction) of the second connector 101; and the contact portion 165 extends upward (Z-axis negative direction) from the connection portion. Note that, preferably, the contact convex portion 165a protruding toward the body portion is formed in the vicinity of the distal end of the contact portion 165 . The body portion is a portion that is pressed and held in the second terminal accommodating cavity 115 . In addition, the tail portion 162 is bent and connected to the lower end of the body portion, extends in the width direction of the second base 111, and is connected to the connection pads (connection pads are connected to conductive traces on the second substrate) by soldering or the like. The conductive traces are typically signal lines. In addition, the contact portion 165 is when the first connector 1 and the second connector It is preferable that the contact convex portion 165a engages with the contact recessed portion 65a formed on the upright portion 65 of the first terminal 61 when the 101 is fitted to the portion that contacts the first terminal 61 provided in the first connector 1 .

The second terminal 161 is inserted into the second terminal receiving cavity 115 from below the second base 111 and attached to the second base 111 . Therefore, the body portion of the second terminal 161 is pressed into and held in the second terminal accommodating cavity 115b, the contact portion 165 is exposed to the groove portion 112a, and the lower surface of the tail portion 162 is exposed to the lower surface of the second base 111. Mounting surface 111b.

Further, like the first terminals 61, the second terminals 161 attached to the respective groove portions 112a are oriented so that the postures of the adjacent second terminals are opposite to each other in the width direction of the groove portions 112a. In the example shown in FIG. 6A , the posture of the second terminal 161 attached to the front end (X-axis positive direction end) in the groove portion 112 a on the Y-axis positive direction side is oriented so that the tail portion 162 is in the Y-axis negative direction Protruding, and conversely, the posture of the second terminal 161 at the second position from the front end is oriented such that the tail portion 162 protrudes in the positive direction of the Y-axis. In this way, since the plurality of second terminals 161 are alternately juxtaposed in opposite directions in the groove portion 112a, the pitch of the tail portions 162 exposed on the mounting surface 111b on both sides of the groove portion 112a is set It is twice the pitch of the second terminals 161 . Therefore, the connection work to the connection pads of the second substrate by soldering or the like can be easily performed. The pitch of the contact portions 165 exposed to the groove portion 112 a is also set to be twice the pitch of the second terminals 161 .

In addition, second protruding end portions 121 as fitting guide portions are provided at both ends of the second base 111 in the longitudinal direction. A fitting concave portion 122 that is a part of the concave portion 112 is formed on each of the second protruding end portions 121 . The fitting recessed portion 122 is a substantially rectangular recessed portion connected to both ends in the longitudinal direction of each groove portion 112a. In a state where the first connector 1 and the second connector 101 are fitted, the first protruding end portion 18 of the first connector 1 is inserted into the fitting recess 122 . A second reinforcing fitting 151 as a fitting fitting is attached to the second protruding end portion 121 . The second reinforcement fitting 151 is integrated with the second base 111 by insert molding.

The second reinforcement fitting 151 is an element integrally formed by applying processing such as punching, bending, etc. to a metal plate, and has: a second body portion 152 extending in the width direction of the second base 111; and a side covering portion 153, Connected to the left and right ends of the second body portion 152 ; the contact side portion 154 is disposed on the left and right inner walls of the fitting recess 122 ; and the tail portion 156 is connected to the lower end of the second body portion 152 . The tail portion 156 extends outward in the longitudinal direction of the second connector 101, and is connected to a connection pad (not shown) exposed on the surface of the second substrate by soldering or the like. Note that, for example, the connection pads are preferably joined with conductive traces as power lines.

Next, the fitting operation of the first connector 1 and the second connector 101 having the above-described configuration will be described.

Here, the tails 62 of the first terminals 61 of the first connector 1 are connected to connection pads connected to conductive traces on the not-shown first substrate via soldering, and the first reinforcement The tails 52a of the fittings 51 are connected via soldering to connection pads connected to conductive traces on the first substrate, and thus the first connector 1 is mounted on the surface of the first substrate. Note that the conductive traces connected to the connection pads connected to the tails 62 of the first terminals 61 are signal wires, and the conductive traces connected to the connection pads connected to the tails 52a of the first reinforcement fittings 51 are power wires.

Likewise, the tails 162 of the second terminals 161 of the second connector 101 are connected via soldering to connection pads connected to conductive traces on the second substrate, not shown, and the tails 156 of the second reinforcement fittings 151 are connected via soldering On the connection pads connected to the conductive traces on the second substrate, and thus the second connector 101 is mounted on the surface of the second substrate. Note that the conductive traces connected to the connection pads connected to the tails 162 of the second terminals 161 are signal wires, and the conductive traces connected to the connection pads connected to the tails 156 of the second reinforcement fittings 151 are power wires.

First, the operator matches the fitting surface 12 a of the first convex portion 12 (the fitting surface 12 a is the fitting surface of the first base 11 of the first connector 1 ) with the second base 111 of the second connector 101 . The mating surfaces 111a are opposite to each other, and when the position of the first convex portion 12 of the first connector 1 is consistent with the position of the corresponding groove portion 112a of the second connector 101 and the first protruding end of the first connector 1 When the position of 18 matches the position of the corresponding fitting recess 122 of the second connector 101, the alignment between the first connector 1 and the second connector 101 is completed.

In this state, when the first connector 1 and/or the second connector 101 The first convex portion 12 and the first protruding end portion 18 of the first connector 1 are inserted into the groove portion 112 a and the fitting concave portion 122 of the second connector 101 while moving in the direction closer to the mating side (ie, the fitting direction). . This achieves the state shown in FIG. 6B , and completes the fitting of the first connector 1 and the second connector 101 . In addition, the first terminal 61 and the second terminal 161 are in a conductive state.

Therefore, in this embodiment, the first connector 1 is provided with a first base 11 and a plurality of first terminals 61 mounted on the first base 11 ; the first base 11 is formed with the A plurality of first terminals 61 are integrated, and include a first protrusion 12 extending in the longitudinal direction of the plurality of first terminals 61 and holding the plurality of first terminals 61 and a mounting surface side end of the first base 11 from the first The flanges 17b protruding from the outer side 12b and the inner side 12c of the convex portion 12 to the outside in the width direction; and the tail portion 62, which is connected to the mounting surface side end of the vertical portion 65 via the curved connecting portion 63, and thereby the tail portion 62 extends from the flange 17b to the outside in the width direction and is welded to the substrate; the flange 17b is included in the corresponding first terminal 61, so that at least a part of the surfaces 62a, 63a and 65b of the tail portion 62, the curved connecting portion 63 and the vertical portion 65 is exposed at the notch 17c.

This makes it easier to manufacture the first connector 1 , prevents underfilling, prevents flux from adhering to the contact recesses 65 a of the first terminals 61 , enables miniaturization, and improves the reliability of the first connector 1 .

In addition, a continuous corner passes from the lower surface 62d of the tail 62 through the notch 17c to the upper surface 17b1 of the flange 17b are formed. Also, a corner is an intersection of two surfaces that intersect with each other. Additionally, the corners are passages through which flux passes during soldering of the tails 62 . Also, the side concave portion 12d is formed on the outer side surface 12b and the inner side surface 12c of the first convex portion 12 between the standing portions 65 adjacent to each other. Moreover, the bottom surface 12d2 of the side recessed part 12d is flush with the upper surface 17b1 of the flange 17b. In addition, the flux is collected in the side recess 12d during the soldering of the tail 62 .

It is noted that the summary of this specification describes features in relation to suitable exemplary embodiments. Various other embodiments, modifications and variations within the scope and spirit of the appended claims will naturally occur to those skilled in the art from reviewing the summary of the present specification. For example, the staggered arrangement of multiple terminals need not be regular. In addition, the arrangement of the terminals in the left and right halves does not necessarily have to be the same. Furthermore, the left and right halves need not be axisymmetric.

1: The first connector

10A: Left half of the body

10B: Right half of the body

11: The first base

12: The first convex part

12a: Mating surface

12b: Outer side

12c: inner side

12d: Side recesses

13: groove part

16: Covering Department

17: Bottom plate

17a: Mounting surface

17b: Flange

17b1: Upper surface

17c: Notch

18: The first protruding end

51: The first strengthening accessories

52: Outer cover of end wall

52a: tail

53: End wall inner surface covering

54: Upper board

55: Feet

61: The first terminal

62: tail

65: Libe

65a: Contact recess

Claims (10)

A connector provided with a connector body and a plurality of terminals attached to the connector body, wherein: the connector body is an element integrated with the plurality of terminals by insert molding, and is included in its a protrusion extending in the longitudinal direction and holding the plurality of terminals and a flange protruding from the side surface of the protrusion to the outside in the width direction at the mounting surface side end of the connector body; the terminal includes a vertical portion, a surface is exposed on the side surface of the convex portion; and a tail portion is connected to the mounting surface side end of the vertical portion via a curved connection portion, extends from the flange to the outside in the width direction, and is welded to the base plate; the flange includes A notch is formed at a position corresponding to each terminal, and at least a part of the surface of the tail portion, the curved connection portion and the upright portion is exposed at the notch. The connector of claim 1, wherein a width of the notch is narrower than a width of at least one of a riser, a bent connection, or a tail of the terminal. The connector of claim 1 wherein a continuous corner is formed from the tail through the notch to the upper surface of the flange. The connector of claim 3, wherein the corner is an intersection of two surfaces that intersect with each other. The connector according to any one of claims 1 to 4, wherein a contact recess is formed between the uprights adjacent to each other on the side surface of the convex. The connector of claim 5, wherein the bottom surface of the contact recess is flush with the upper surface of the flange. The connector of claim 1, wherein the upright portion includes a contact recess that contacts a mating terminal of a mating connector, and wherein the contact portion is spaced apart from the upper surface of the flange. A connector provided with a connector body and a plurality of terminals attached to the connector body, wherein: the connector body is an element integrated with the plurality of terminals by insert molding, and is included in its a protrusion extending in the longitudinal direction and holding the plurality of terminals and a flange protruding from the side surface of the protrusion to the outside in the width direction at the mounting surface side end of the connector body; the terminal includes a vertical portion, A surface is exposed on the side surface of the convex portion; and a tail portion is connected to the mounting surface side end of the vertical portion via a curved connection portion, extends from the flange to the outside in the width direction, and is welded to the substrate; the contact recess is in the The side surfaces of the convex portions are formed between the vertical portions adjacent to each other; the bottom surfaces of the contact recesses are flush with the upper surface of the flange. The connector of claim 8, wherein the upright portion includes a contact recess that contacts a mating terminal of a mating connector, and wherein the contact portion is spaced apart from the upper surface of the flange. A connector pair comprising the connector according to any one of claims 1 to 9 and a mating connector fitted with the connector.

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